Fix lint errors to enable stricter PyLint rules

webrtc/audio/test/unittests/low_bandwidth_audio_test_test.py

 #!/usr/bin/env python
 # Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import os
 import unittest
 import sys
 
 
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 PARENT_DIR = os.path.join(SCRIPT_DIR, os.pardir)
 sys.path.append(PARENT_DIR)
 import low_bandwidth_audio_test
 
 
 class TestExtractTestRuns(unittest.TestCase):
-  def _testLog(self, log, *expected):
+  def _TestLog(self, log, *expected):
     self.assertEqual(
         tuple(low_bandwidth_audio_test.ExtractTestRuns(log.splitlines(True))),
         expected)
 
   def testLinux(self):
-    self._testLog(LINUX_LOG,
+    self._TestLog(LINUX_LOG,
         (None, 'GoodNetworkHighBitrate',
          '/webrtc/src/resources/voice_engine/audio_tiny16.wav',
          '/webrtc/src/out/LowBandwidth_GoodNetworkHighBitrate.wav'),
         (None, 'Mobile2GNetwork',
          '/webrtc/src/resources/voice_engine/audio_tiny16.wav',
          '/webrtc/src/out/LowBandwidth_Mobile2GNetwork.wav'))
 
   def testAndroid(self):
-    self._testLog(ANDROID_LOG,
+    self._TestLog(ANDROID_LOG,
         ('ddfa6149', 'Mobile2GNetwork',
          '/sdcard/chromium_tests_root/resources/voice_engine/audio_tiny16.wav',
          '/sdcard/chromium_tests_root/LowBandwidth_Mobile2GNetwork.wav'),
         ('TA99205CNO', 'GoodNetworkHighBitrate',
          '/sdcard/chromium_tests_root/resources/voice_engine/audio_tiny16.wav',
          '/sdcard/chromium_tests_root/LowBandwidth_GoodNetworkHighBitrate.wav'))
 
 
 LINUX_LOG = r'''\
 [==========] Running 2 tests from 1 test case.
@@ skipping 127 matching lines @@
 C   16.605s Main  [==========] 2 tests ran.
 C   16.605s Main  [  PASSED  ] 2 tests.
 C   16.605s Main  ********************************************************************************
 I   16.608s tear_down_device(ddfa6149)  Wrote device cache: /webrtc/src/out/debug-android/device_cache_ddea6549.json
 I   16.608s tear_down_device(TA99205CNO)  Wrote device cache: /webrtc/src/out/debug-android/device_cache_TA99305CMO.json
 '''
 
 
 if __name__ == "__main__":
   unittest.main()